Dump-car



Patented 30, 1921.v

a SMBus-SHEET l.

DUMP CAR.

H.l S. HART.

APPucAnoN man APR. 1. |919.

HIl s. HART. DUMP CAR.

APPLICAIION FILED APR. I, 1919.

Patented Aug. 30, 1921.

3 SHEETS-SHEET 2.

H. S. HART.

DUMP CAR.

APPLICATION FILED APR. 7. 1919.

1,389,350. Patented Aug. 30, 1921.

3 SHEETS-SHEET 3.

@Wap l @y UNITEDV 1` STATES PAT ENT orifice.

HARRY s. HART,` or cHiofnGo, ILLINOIS.

DUMP-CAR. 7

To @ZZ iii/0m t may concer/n.'

BeA it known thatlI', HARRY S.- HART, a citizen of the United States, residing at Chicago, iii the county of Cook and State of lflliiiois,jhave invented certain new and useiul Improvements in Dump-0ars, of which` the following is a specilication.

My invention relatesto freight cars of the type commonly known as hopper cars, which aie used verylargely for the transportation of coal or like `duinpable material; and has ramong its objects the improvement of this type or carin the manner togreatly increase the load carryingcapacity of the car without changing its overall dimensions, and to provide such a car from which the load may be quickly discharged with a minimum amount of labor, thecar being practically self-cleaning;

With these and other objects which hereinafter will be pointed out, the invention consists ofy the combination and details described in the. following'Y specification and claims.

Thednvention is illustrated on' the accoinpanyingsheets of drawings, in which- Figure 1 is a fragmentary side elevation of a dump ycar embodying my invention;

Fig. 2 is a-transverse sectional view'oi' the same ear taken over the trucks; and

Fig. 3 is a transverse sectional view of the saine car taken intermediate the trucks.

It liasbeen customary to build hopper cars for the transportation of coal and like commodities, having inclined end portions over the trucks discharging the load through the center of the car by means of cross hoppers or longitudinal hoppers provided with suitable` dump doors. These prior construc tions are well known and require no particular description for an understanding thereot'. Owing to the location of the inclined end portions over the trucks, those portions of the cars atthe ends are largely useless :tor load carrying, so that any attempt to increase the vcapacity lof these cars necessarily' has been by a lengthening of the car or Vby increasing its height, while the discharge of vthe load throughV the car hoppers is diiiicult, even where special unloading stations are provided, owing to the necessarily restricted door openings provided in the cross hoppers. While longitudinal hop.- pers also have been provided in cars of this type for discharging the load at the sides in a manner to make unloading easierk at- Specification of Letters Patent. Patent-,ned Aug 30, 1921L Application filed April '7,

1919. Serial No. 288,049.

tempts` to apply this principle to the car have resulted in a greatly decreased load carrying capacity. Y Y

y my present invention, I vovercome the diliculties heretofore experienced inV this type of car,rmakingrit possible to carry in the car ot the same length a greatly increased load, and at'the saine time making itv possible to discharge the load at .a greatly reduced expenditure of time and labor.

The body of the dump car, which is carried on trucks includingwheels 11 at each end ot the car, comprises sides 12, ends 13, and a iioor 14;. The sides 12 of the car are high plate girder sides, which carry the vertical load. These sides are connected by rigid cross frame members 2O.A Ther Hoo-r overl the trucks comprises a stationary fiat portion lover the'center sill 16, said floor portion extending continuously from one side of the car to theot-her. Associated with these stationary flat floor portions over the trucks are side dump doors 15, which may be f as shown, pivotally 4mounted in and form parts of the sides of the car. By means of these side dumpdoors, most of the load over the trucks will be selfedumping. Normally these side dump doors are locked in closed position by locking fingers 18 mounted upon suitably operated shafts 19. Vhen the load over the trucks is to be dumped, the shafts 19 are rotated` whereby the fingers release the doors, which are forced open by the pressure of the dumpable material.

The iioor intermediatethe trucks is the same as that shown and described in my copending application, Serial No. 260,927, filed November 1, 1918, now Patent No. 1,300,962, dated April 15, 1919, and includes stationary portionsy 17 which extend downwardly and inwardly from the lower edges of the car sides 12 toward the center of the car, said stationary portions 17 extending to a point and generally being located below the stationary iioor portions 14 over the trucks, the lower edges of the stationary floor portions 17 terminating in aplane considerably bei wardly ysloping Hoor portions 17 intermediate the trucks are flat dump doors 22, which are located in a plane considera-bly below the center sill 16 and which, when in closed position, as4 shown in full lines in Fig. 3, connect the lower-edges of the floor members 17 and the lower edges of the side hopper members 23 which extend vertically downward from the center sill-16. These doors are located at as low a level as is practicable in order to increase the capacity of the car. Owing to this low position of these doors, it is not advisable to hinge them Vat their edges because of clearance conditions. It is preferable, therefore, that the doors should be opened by sliding thembodilyffrom be neath the load. One way in which this may be done I illustrate. In the present exemplfication of my invention, I show the doors pivoted at a point above the horizontal door portions so as to swing bodily, that is, these flat dump doors 22 preferably are suspended pendulum-like from frame members at pivotal centers 21.1-, there being at the ends of the doors end plate members 25 forming hangers. It will be understood, of course, that as shown these hangers may be mounted outside the end walls 25 of the longitudinal hoppers 26 intermediate the trucks and on opposite sides ot the longitudinal'center ot the car. lhen in closed position, as shown in Fig. 8 of the drawings, the flat doors formV tight seals with the lower edges of the ioor portions 17 and the vertical members 23, and may be held in such position by any suitable door operating mechanism.

One example of the above mechanism as shown in Fig. 3 includes a center operating shaft 27 and operating chains 28, which operatively ,connect the shaft 27 with the doon 22. It will be noted that the centers 24, from which the doors 22 are hung, are located off-center with respectto the longitudinal center line ci the doors 22, so that when the operating shaft 27 is operated in a manner to slaclren the chains 2S or unwrap them trom the shaft 27, the doors 22 will swing outwardly as result of their Vown weight,l and this outwardly swinging movement will be made more positive as a result ot the weight ot the load to'be dumped. One ot these dump doors 22 is shown in opened or dumping position in dotted lines in Fig. 3. To close the dinnp doors, it is merely necessary to actuate the operating shaft in a manner to wrap the chains 28 thereon, whereupon the dump doors 22 will move into a `closed position. y

means ot placing the iiat dump doors 22 in a horizontal plane when in closed position and at a level as :tar below the center sill as isv permissible, the capacity of the dump car greatly increased, it being appreciated also that by means of the floor construction over the trucks, the capacity of the car is also increased. At the same time, by means of vthe floor and dump door arrangement, the car is made practically selfclearing. Furthermore, with the high plate girder sides carrying the loading, said sides being tied together by rigid cross members, the end floor portions over the trucks being stationary and rigid as also are the intermediate floor port-ions 17, a very strongly constructed car is provided, not only for carrying the load, but also fory resisting all strains includingbnffing strains.

It is my intention to cover all modifications falling within the spirit and scope ot the following claims.

I claim:

1. A car ot the class described, having high girder sides carrying the load, the Hoor over the trucks comprising a stationary horizonal flat portion, the floor intermediate the trucks being at a lower level than the floor portions over the trucks, side dump doors formed within the area of the girder sides and associated with the floor portions over the trucks, and Hoor dump doors intermediate the trucks whereby the load may be dumped.

2. A car ot the class described, having high girder sides carrying the load, the floor over the trucks comprising a stationary horizonal fiat portion, the floor intermediate the trucks being at a lower level than the floor portions over the trucks,.doors mounted in the high girder sides ofthe car adjacent the flat floor portions over the trucks, whereby the load over the trucks may-be discharged to the sides ot the car, and dump doors in the floor ofthe car intermediate the trucks for dnmping the intermediate portion of the load. Y

A car of the class described, having high girder sides carrying the load, the floorover the trucks comprising a stationary hori- Zonal flatportion, the floor intermediate the truclrs being at a lower level than the floor portions over the trucks, doors in the girder sides whereby the load over the trucks may be dumped outwardly and means whereby the load intermediate the trucks may be dumped inwz-irdly. l

4. A car of the class described having -high girder sides andv end walls,.a substantially horizontal tlat floor over the trucks, the floor between the trucks comprisingv hoppers at a lower level than the end ,tloor portions, means above the lower level of the girder sides saitL end floor portions and means for discharging the load 'from said hoppers.

Signed at Chicago, Illinois, this 5th dav ot April, 1919.

HARRY s. HART.

for discharging the load from ,K 

